/*
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 * http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package com.addthis.hydra.job.alert;

import javax.annotation.Nonnull;

import org.apache.commons.lang3.StringUtils;

public enum SuppressChanges {
    TRUE, FALSE, NEWLINE;

    public boolean suppress(@Nonnull String oldMessage, @Nonnull String newMessage) {
        switch (this) {
            case TRUE:
                return true;
            case FALSE:
                return false;
            case NEWLINE: {
                int oldLines = StringUtils.countMatches(oldMessage, "\n");
                int newLines = StringUtils.countMatches(newMessage, "\n");
                return (oldLines == newLines);
            }
            default :
                throw new IllegalStateException("unknown value " + this);
        }
    }
}
